Fatal error: Uncaught TypeError: extract(): Argument #1 ($array) must be of type array, null given in /home/cloudrocket/public_html/wp-content/plugins/tutor/views/quiz/attempt-table.php:13 Stack trace: #0 /home/cloudrocket/public_html/wp-content/plugins/tutor/views/quiz/attempt-table.php(13): extract(NULL) #1 {main} thrown in /home/cloudrocket/public_html/wp-content/plugins/tutor/views/quiz/attempt-table.php on line 13